Improvement in churns



G. B.,H`ART.

Improvement in Churns.v

Pgremed oct. 1",y l1872.

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NrTED STATES ATE'I FFICE.

IMPROVEMENT IN CHURNS.

Specification forming part of Letters Patent No. 131,877, dated October 1, 1872.

.y Fig. 2 is an enlarged detail of the coupling of the pinion-shaft to the dash-rod; Fig. 3 is a crossseotion of the same at and Fig. 4L is a horizontal section aty y in Fig. 1.

Like letters refer to like parts in each figure. The nature of this invention relates to an improved construction of churns of that class in which a rotary .dasher is employed, in connection with stationary breakers in the churn for breakingup with rapidity the fatty globj ules of the cream and liberating the butter;

and it consists inthe peculiar construction and arrangement of the dash with relation to a movable frame or bottom girt, which forms its step, andv also supports at either end a cream-breaker.

In the drawing, A represents a platform having a recessed frame-work on its upper side to receive and hold the base of the churn B, elosed at the top by a cover, C. D are four posts supporting a platform, E, their lower ends projecting through the lower platform, which may be secured thereto by keys or pins. On the platform E is secured a east-metal frame, from which rise two standards, F, in

-` the tops of whicha crank-shaft, G, is journaled, carrying a bevel-gear wheel, H, meshing with a pinion, I, at the top of a vertical shaft, J, journaled through the frame and projecting down through the platform E, where its lower end is mortised and expanded with a ring, a, slipped over it. In the bottom of the churn is loosely placed a girt, K, at each end of which is piyoted a cream-breaker, L, the top of which projects up through the cover. These cream-breakers are made of inchboard, with a mortise nearly their full length, the edges of the Inortises being sharpened to out the cream dashed against them. To further promote the breaking up of the fatty globules a number of wire pins, b, are driven through the sides of the breakers across the mortised openings. ,M is the dasher-shaft, stepped in the girt K and projecting up through the cover,

its upper extremitybeing attened to insert f in the mortise at the lower end of the pinionshaft, which is rigidly connected thereto by clamping with the ring a. Through the body of the dasher-shaft are passed four radial arms, c, `to the ends of which are secured four vanes, d, inclining outwardly `at the top,so as to pass close to the breakers, and give the cream an inward tendency when the dasher is rotated, which rotarymotion is given at a high speed through the gearing; or, in the larger sizes, power may be used.

By detaching the vdash-shaft from the pinion-shaft the upper platform and gearing may be removed, the cover taken off'and dash and breakers be lifted out, and the churn removed for cleaning. Y

The vanes d may be set at varying angles; or one pair may be set to throw the cream in'- ward, and the other pair to throw it outward.

What I claim as my invention, and desire to secure by Letters Patent, is

The stepgirt K, creambreakers L, dashshaft M, arms c, and vanes d, arranged and operating with relation to the churn B and cover C, as shown and set forth.

GEORGE B. HART.

Witnesses DEXTER CUNNINGHAM, L; G. NILEs. 

